A car running at 60 kph has a braking distance of 30 m. If the coefficient of resistance between the tire and pavement is 0.5, find the grade if said car travel was uphill.
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A: Given data : Work done = W Time taken = T To find : Power
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Q: You eat a sandwich. Later that day, you walk up a flight of stairs. a. Describe how energy changes…
A: a. The sandwich contains energy in the form of chemical energy. When I ate the sandwich, this…
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Q: For each of the following, is W-R positive, negative, or zero? A B F ф B d A d B W- is is WA-B A B A
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A: The correct option is (C) Explanation- whenever car stops the car use friction brakes which inhibit…
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Q: Work is measured in the units of? Choose all that apply. A. Joules (J) B. Kilocaloie C.…
A: The international System of unit of work is joule. The symbol of joule is J. Joule is equal to the…
Q: Part An ice cube is placed in a microwave oven. Suppose the oven delivers 135 W of power to the ice…
A: Given data: Power (P) = 135 W Energy (E) = 31200 J Required: Time (t)
Q: 7. Determine the power consumed (in kW) by the heating coil in the following diagram. heating coil…
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Q: Give the Formula for Efficiency, Work Flow rate
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Q: The mass energy equivalence shows that conservation of mass is a restatement of — A the first law of…
A: Analyzing the question, In this question we have to determine that which of the four laws is a…
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Q: Energy consumption At the beginning of 2010, the rate of energy consumption for the city of Denver…
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Q: How much energy is required to run a 35 W light bulb for 4.0 min? a. 840 J b. 1400 J c. 140 J d.…
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Q: An electric kettle of 2200 W is used for 1 min. How much electrical energy is used
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Q: Your Lecturer in class made the following statement: "We do not buy electrons from Eskom but we buy…
A: Given Power of hairdryer P=1200W=12001000kW=1.2kW Time it is run t=30 min=3060hr=0.5hr 1kWh cost…
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Q: How much energy is used in 20 minutes of listening to music on an mp3 player that uses 9 watts of…
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Q: An ice cube is placed in a microwave oven. Suppose the over delivers 105 W of power to the ice cube…
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Q: 10. Who is working harder, Fred running a 10 min mile pace at a 10% grade or Pete who is 65 kg,…
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Q: If a blow dryer uses 1.1 x 10³ J of energy, and it is in use for 15 minutes, what is its power? the…
A: Given, energy consumed E=1.1x103W
Q: 2. There is a 1000 W iron with a soleplate of 2.5 mm thick aluminum alloy (alloy density: 2,770…
A: Since the first question seems to be incomplete, the second question is being solved. Please re-post…
Q: Bulb A, B, C are 60W lightbulbs. Bulb D is 100 W lightbulb. If lightbulb C is broken, rank the order…
A: Power of bulb A and B = 60Watt Lightbulb C is broken.
Q: What is the wattage of a light bulb that uses 35 J of energy in 7 s?
A: given, Energy = 35 J time = 7 s Therefore, the wattage of the light bulb =…
Q: Calculate the number of kilowatt-hours (kW-hrs) consumed in a week by an 850- Watt window air…
A: Given,Power of Air conditioner =850 Watt
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Q: An electric car is designed to run off a bank of 15-V batteries with total energy storage of 2.1 ×…
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Q: Matthew (220lbs) has a Monarch cycle ergometer that he rides every morning. He expends 300 Kcals…
A: Given, Mass of Matthew, m=220 lbs=99.8 kg Energy spent, E=300 kcals=1.25×106J Time,t=30 minute=1800…
Q: A sump pump turning at 1600 rpm provides a discharge of 9 gpm against a head of 18 ft. Compute the…
A: Given: From the given data, h=18 ft N=1600 rpm Q=p gpm
Q: The dimensions of Power is Select one: O a. ML2T-1 O b. MLT-1 O c. ML2T-2 O d. ML2T-3 O e. MLT-2
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Q: According to the NEC Table 220.55, what would the demand load be for a range rated 16 kW? Select…
A: Introduction: Table 220.55 gives you the demand factors that can be applies to electric ranges or…
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A: Time taken for object to go from A to C through B t=50 s, B is 10 m east of A and 5 m west of C at…
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